﻿/*
 Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
 For licensing, see LICENSE.html or http://ckeditor.com/license
 */

/**
 * @fileOverview The floating dialog plugin.
 */

/**
 * No resize for this dialog.
 * @constant
 */
CKEDITOR.DIALOG_RESIZE_NONE = 0;

/**
 * Only allow horizontal resizing for this dialog, disable vertical resizing.
 * @constant
 */
CKEDITOR.DIALOG_RESIZE_WIDTH = 1;

/**
 * Only allow vertical resizing for this dialog, disable horizontal resizing.
 * @constant
 */
CKEDITOR.DIALOG_RESIZE_HEIGHT = 2;

/*
 * Allow the dialog to be resized in both directions.
 * @constant
 */
CKEDITOR.DIALOG_RESIZE_BOTH = 3;

(function () {
    var cssLength = CKEDITOR.tools.cssLength;

    function isTabVisible(tabId) {
        return !!this._.tabs[tabId][0].$.offsetHeight;
    }

    function getPreviousVisibleTab() {
        var tabId = this._.currentTabId,
            length = this._.tabIdList.length,
            tabIndex = CKEDITOR.tools.indexOf(this._.tabIdList, tabId) + length;

        for (var i = tabIndex - 1; i > tabIndex - length; i--) {
            if (isTabVisible.call(this, this._.tabIdList[i % length]))
                return this._.tabIdList[i % length];
        }

        return null;
    }

    function getNextVisibleTab() {
        var tabId = this._.currentTabId,
            length = this._.tabIdList.length,
            tabIndex = CKEDITOR.tools.indexOf(this._.tabIdList, tabId);

        for (var i = tabIndex + 1; i < tabIndex + length; i++) {
            if (isTabVisible.call(this, this._.tabIdList[i % length]))
                return this._.tabIdList[i % length];
        }

        return null;
    }


    function clearOrRecoverTextInputValue(container, isRecover) {
        var inputs = container.$.getElementsByTagName('input');
        for (var i = 0, length = inputs.length; i < length; i++) {
            var item = new CKEDITOR.dom.element(inputs[i]);

            if (item.getAttribute('type').toLowerCase() == 'text') {
                if (isRecover) {
                    item.setAttribute('value', item.getCustomData('fake_value') || '');
                    item.removeCustomData('fake_value');
                }
                else {
                    item.setCustomData('fake_value', item.getAttribute('value'));
                    item.setAttribute('value', '');
                }
            }
        }
    }

    // Handle dialog element validation state UI changes.
    function handleFieldValidated(isValid, msg) {
        var input = this.getInputElement();
        if (input) {
            isValid ? input.removeAttribute('aria-invalid')
                : input.setAttribute('aria-invalid', true);
        }

        if (!isValid) {
            if (this.select)
                this.select();
            else
                this.focus();
        }

        msg && alert(msg);

        this.fire('validated', {valid: isValid, msg: msg});
    }

    function resetField() {
        var input = this.getInputElement();
        input && input.removeAttribute('aria-invalid');
    }


    /**
     * This is the base class for runtime dialog objects. An instance of this
     * class represents a single named dialog for a single editor instance.
     * @param {Object} editor The editor which created the dialog.
     * @param {String} dialogName The dialog's registered name.
     * @constructor
     * @example
     * var dialogObj = new CKEDITOR.dialog( editor, 'smiley' );
     */
    CKEDITOR.dialog = function (editor, dialogName) {
        // Load the dialog definition.
        var definition = CKEDITOR.dialog._.dialogDefinitions[dialogName],
            defaultDefinition = CKEDITOR.tools.clone(defaultDialogDefinition),
            buttonsOrder = editor.config.dialog_buttonsOrder || 'OS',
            dir = editor.lang.dir,
            tabsToRemove = {},
            i,
            processed, stopPropagation;

        if (( buttonsOrder == 'OS' && CKEDITOR.env.mac ) ||    // The buttons in MacOS Apps are in reverse order (#4750)
            ( buttonsOrder == 'rtl' && dir == 'ltr' ) ||
            ( buttonsOrder == 'ltr' && dir == 'rtl' ))
            defaultDefinition.buttons.reverse();


        // Completes the definition with the default values.
        definition = CKEDITOR.tools.extend(definition(editor), defaultDefinition);

        // Clone a functionally independent copy for this dialog.
        definition = CKEDITOR.tools.clone(definition);

        // Create a complex definition object, extending it with the API
        // functions.
        definition = new definitionObject(this, definition);

        var doc = CKEDITOR.document;

        var themeBuilt = editor.theme.buildDialog(editor);

        // Initialize some basic parameters.
        this._ =
        {
            editor: editor,
            element: themeBuilt.element,
            name: dialogName,
            contentSize: {width: 0, height: 0},
            size: {width: 0, height: 0},
            contents: {},
            buttons: {},
            accessKeyMap: {},

            // Initialize the tab and page map.
            tabs: {},
            tabIdList: [],
            currentTabId: null,
            currentTabIndex: null,
            pageCount: 0,
            lastTab: null,
            tabBarMode: false,

            // Initialize the tab order array for input widgets.
            focusList: [],
            currentFocusIndex: 0,
            hasFocus: false
        };

        this.parts = themeBuilt.parts;

        CKEDITOR.tools.setTimeout(function () {
                editor.fire('ariaWidget', this.parts.contents);
            },
            0, this);

        // Set the startup styles for the dialog, avoiding it enlarging the
        // page size on the dialog creation.
        var startStyles = {
            position: CKEDITOR.env.ie6Compat ? 'absolute' : 'fixed',
            top: 0,
            visibility: 'hidden'
        };

        startStyles[dir == 'rtl' ? 'right' : 'left'] = 0;
        this.parts.dialog.setStyles(startStyles);


        // Call the CKEDITOR.event constructor to initialize this instance.
        CKEDITOR.event.call(this);

        // Fire the "dialogDefinition" event, making it possible to customize
        // the dialog definition.
        this.definition = definition = CKEDITOR.fire('dialogDefinition',
            {
                name: dialogName,
                definition: definition
            }
            , editor).definition;

        // Cache tabs that should be removed.
        if (!( 'removeDialogTabs' in editor._ ) && editor.config.removeDialogTabs) {
            var removeContents = editor.config.removeDialogTabs.split(';');

            for (i = 0; i < removeContents.length; i++) {
                var parts = removeContents[i].split(':');
                if (parts.length == 2) {
                    var removeDialogName = parts[0];
                    if (!tabsToRemove[removeDialogName])
                        tabsToRemove[removeDialogName] = [];
                    tabsToRemove[removeDialogName].push(parts[1]);
                }
            }
            editor._.removeDialogTabs = tabsToRemove;
        }

        // Remove tabs of this dialog.
        if (editor._.removeDialogTabs && ( tabsToRemove = editor._.removeDialogTabs[dialogName] )) {
            for (i = 0; i < tabsToRemove.length; i++)
                definition.removeContents(tabsToRemove[i]);
        }

        // Initialize load, show, hide, ok and cancel events.
        if (definition.onLoad)
            this.on('load', definition.onLoad);

        if (definition.onShow)
            this.on('show', definition.onShow);

        if (definition.onHide)
            this.on('hide', definition.onHide);

        if (definition.onOk) {
            this.on('ok', function (evt) {
                // Dialog confirm might probably introduce content changes (#5415).
                editor.fire('saveSnapshot');
                setTimeout(function () {
                    editor.fire('saveSnapshot');
                }, 0);
                if (definition.onOk.call(this, evt) === false)
                    evt.data.hide = false;
            });
        }

        if (definition.onCancel) {
            this.on('cancel', function (evt) {
                if (definition.onCancel.call(this, evt) === false)
                    evt.data.hide = false;
            });
        }

        var me = this;

        // Iterates over all items inside all content in the dialog, calling a
        // function for each of them.
        var iterContents = function (func) {
            var contents = me._.contents,
                stop = false;

            for (var i in contents) {
                for (var j in contents[i]) {
                    stop = func.call(this, contents[i][j]);
                    if (stop)
                        return;
                }
            }
        };

        this.on('ok', function (evt) {
            iterContents(function (item) {
                if (item.validate) {
                    var retval = item.validate(this),
                        invalid = typeof ( retval ) == 'string' || retval === false;

                    if (invalid) {
                        evt.data.hide = false;
                        evt.stop();
                    }

                    handleFieldValidated.call(item, !invalid, typeof retval == 'string' ? retval : undefined);
                    return invalid;
                }
            });
        }, this, null, 0);

        this.on('cancel', function (evt) {
            iterContents(function (item) {
                if (item.isChanged()) {
                    if (!confirm(editor.lang.common.confirmCancel))
                        evt.data.hide = false;
                    return true;
                }
            });
        }, this, null, 0);

        this.parts.close.on('click', function (evt) {
            if (this.fire('cancel', {hide: true}).hide !== false)
                this.hide();
            evt.data.preventDefault();
        }, this);

        // Sort focus list according to tab order definitions.
        function setupFocus() {
            var focusList = me._.focusList;
            focusList.sort(function (a, b) {
                // Mimics browser tab order logics;
                if (a.tabIndex != b.tabIndex)
                    return b.tabIndex - a.tabIndex;
                //  Sort is not stable in some browsers,
                // fall-back the comparator to 'focusIndex';
                else
                    return a.focusIndex - b.focusIndex;
            });

            var size = focusList.length;
            for (var i = 0; i < size; i++)
                focusList[i].focusIndex = i;
        }

        function changeFocus(offset) {
            var focusList = me._.focusList;
            offset = offset || 0;

            if (focusList.length < 1)
                return;

            var current = me._.currentFocusIndex;

            // Trigger the 'blur' event of  any input element before anything,
            // since certain UI updates may depend on it.
            try {
                focusList[current].getInputElement().$.blur();
            }
            catch (e) {
            }

            var startIndex = ( current + offset + focusList.length ) % focusList.length,
                currentIndex = startIndex;
            while (offset && !focusList[currentIndex].isFocusable()) {
                currentIndex = ( currentIndex + offset + focusList.length ) % focusList.length;
                if (currentIndex == startIndex)
                    break;
            }

            focusList[currentIndex].focus();

            // Select whole field content.
            if (focusList[currentIndex].type == 'text')
                focusList[currentIndex].select();
        }

        this.changeFocus = changeFocus;


        function keydownHandler(evt) {
            // If I'm not the top dialog, ignore.
            if (me != CKEDITOR.dialog._.currentTop)
                return;

            var keystroke = evt.data.getKeystroke(),
                rtl = editor.lang.dir == 'rtl',
                button;

            processed = stopPropagation = 0;

            if (keystroke == 9 || keystroke == CKEDITOR.SHIFT + 9) {
                var shiftPressed = ( keystroke == CKEDITOR.SHIFT + 9 );

                // Handling Tab and Shift-Tab.
                if (me._.tabBarMode) {
                    // Change tabs.
                    var nextId = shiftPressed ? getPreviousVisibleTab.call(me) : getNextVisibleTab.call(me);
                    me.selectPage(nextId);
                    me._.tabs[nextId][0].focus();
                }
                else {
                    // Change the focus of inputs.
                    changeFocus(shiftPressed ? -1 : 1);
                }

                processed = 1;
            }
            else if (keystroke == CKEDITOR.ALT + 121 && !me._.tabBarMode && me.getPageCount() > 1) {
                // Alt-F10 puts focus into the current tab item in the tab bar.
                me._.tabBarMode = true;
                me._.tabs[me._.currentTabId][0].focus();
                processed = 1;
            }
            else if (( keystroke == 37 || keystroke == 39 ) && me._.tabBarMode) {
                // Arrow keys - used for changing tabs.
                nextId = ( keystroke == ( rtl ? 39 : 37 ) ? getPreviousVisibleTab.call(me) : getNextVisibleTab.call(me) );
                me.selectPage(nextId);
                me._.tabs[nextId][0].focus();
                processed = 1;
            }
            else if (( keystroke == 13 || keystroke == 32 ) && me._.tabBarMode) {
                this.selectPage(this._.currentTabId);
                this._.tabBarMode = false;
                this._.currentFocusIndex = -1;
                changeFocus(1);
                processed = 1;
            }
            // If user presses enter key in a text box, it implies clicking OK for the dialog.
            else if (keystroke == 13 /*ENTER*/) {
                // Don't do that for a target that handles ENTER.
                var target = evt.data.getTarget();
                if (!target.is('a', 'button', 'select') && ( !target.is('input') || target.$.type != 'button' )) {
                    button = this.getButton('ok');
                    button && CKEDITOR.tools.setTimeout(button.click, 0, button);
                    processed = 1;
                }
                stopPropagation = 1; // Always block the propagation (#4269)
            }
            else if (keystroke == 27 /*ESC*/) {
                button = this.getButton('cancel');

                // If there's a Cancel button, click it, else just fire the cancel event and hide the dialog.
                if (button)
                    CKEDITOR.tools.setTimeout(button.click, 0, button);
                else {
                    if (this.fire('cancel', {hide: true}).hide !== false)
                        this.hide();
                }
                stopPropagation = 1; // Always block the propagation (#4269)
            }
            else
                return;

            keypressHandler(evt);
        }

        function keypressHandler(evt) {
            if (processed)
                evt.data.preventDefault(1);
            else if (stopPropagation)
                evt.data.stopPropagation();
        }

        var dialogElement = this._.element;
        // Add the dialog keyboard handlers.
        this.on('show', function () {
            dialogElement.on('keydown', keydownHandler, this);

            // Some browsers instead, don't cancel key events in the keydown, but in the
            // keypress. So we must do a longer trip in those cases. (#4531,#8985)
            if (CKEDITOR.env.opera || CKEDITOR.env.gecko)
                dialogElement.on('keypress', keypressHandler, this);

        });
        this.on('hide', function () {
            dialogElement.removeListener('keydown', keydownHandler);
            if (CKEDITOR.env.opera || CKEDITOR.env.gecko)
                dialogElement.removeListener('keypress', keypressHandler);

            // Reset fields state when closing dialog.
            iterContents(function (item) {
                resetField.apply(item);
            });
        });
        this.on('iframeAdded', function (evt) {
            var doc = new CKEDITOR.dom.document(evt.data.iframe.$.contentWindow.document);
            doc.on('keydown', keydownHandler, this, null, 0);
        });

        // Auto-focus logic in dialog.
        this.on('show', function () {
            // Setup tabIndex on showing the dialog instead of on loading
            // to allow dynamic tab order happen in dialog definition.
            setupFocus();

            if (editor.config.dialog_startupFocusTab
                && me._.pageCount > 1) {
                me._.tabBarMode = true;
                me._.tabs[me._.currentTabId][0].focus();
            }
            else if (!this._.hasFocus) {
                this._.currentFocusIndex = -1;

                // Decide where to put the initial focus.
                if (definition.onFocus) {
                    var initialFocus = definition.onFocus.call(this);
                    // Focus the field that the user specified.
                    initialFocus && initialFocus.focus();
                }
                // Focus the first field in layout order.
                else
                    changeFocus(1);

                /*
                 * IE BUG: If the initial focus went into a non-text element (e.g. button),
                 * then IE would still leave the caret inside the editing area.
                 */
                if (this._.editor.mode == 'wysiwyg' && CKEDITOR.env.ie) {
                    var $selection = editor.document.$.selection,
                        $range = $selection.createRange();

                    if ($range) {
                        if ($range.parentElement && $range.parentElement().ownerDocument == editor.document.$
                            || $range.item && $range.item(0).ownerDocument == editor.document.$) {
                            var $myRange = document.body.createTextRange();
                            $myRange.moveToElementText(this.getElement().getFirst().$);
                            $myRange.collapse(true);
                            $myRange.select();
                        }
                    }
                }
            }
        }, this, null, 0xffffffff);

        // IE6 BUG: Text fields and text areas are only half-rendered the first time the dialog appears in IE6 (#2661).
        // This is still needed after [2708] and [2709] because text fields in hidden TR tags are still broken.
        if (CKEDITOR.env.ie6Compat) {
            this.on('load', function (evt) {
                var outer = this.getElement(),
                    inner = outer.getFirst();
                inner.remove();
                inner.appendTo(outer);
            }, this);
        }

        initDragAndDrop(this);
        initResizeHandles(this);

        // Insert the title.
        ( new CKEDITOR.dom.text(definition.title, CKEDITOR.document) ).appendTo(this.parts.title);

        // Insert the tabs and contents.
        for (i = 0; i < definition.contents.length; i++) {
            var page = definition.contents[i];
            page && this.addPage(page);
        }

        this.parts['tabs'].on('click', function (evt) {
            var target = evt.data.getTarget();
            // If we aren't inside a tab, bail out.
            if (target.hasClass('cke_dialog_tab')) {
                // Get the ID of the tab, without the 'cke_' prefix and the unique number suffix.
                var id = target.$.id;
                this.selectPage(id.substring(4, id.lastIndexOf('_')));

                if (this._.tabBarMode) {
                    this._.tabBarMode = false;
                    this._.currentFocusIndex = -1;
                    changeFocus(1);
                }
                evt.data.preventDefault();
            }
        }, this);

        // Insert buttons.
        var buttonsHtml = [],
            buttons = CKEDITOR.dialog._.uiElementBuilders.hbox.build(this,
                {
                    type: 'hbox',
                    className: 'cke_dialog_footer_buttons',
                    widths: [],
                    children: definition.buttons
                }, buttonsHtml).getChild();
        this.parts.footer.setHtml(buttonsHtml.join(''));

        for (i = 0; i < buttons.length; i++)
            this._.buttons[buttons[i].id] = buttons[i];
    };

    // Focusable interface. Use it via dialog.addFocusable.
    function Focusable(dialog, element, index) {
        this.element = element;
        this.focusIndex = index;
        // TODO: support tabIndex for focusables.
        this.tabIndex = 0;
        this.isFocusable = function () {
            return !element.getAttribute('disabled') && element.isVisible();
        };
        this.focus = function () {
            dialog._.currentFocusIndex = this.focusIndex;
            this.element.focus();
        };
        // Bind events
        element.on('keydown', function (e) {
            if (e.data.getKeystroke() in {32: 1, 13: 1})
                this.fire('click');
        });
        element.on('focus', function () {
            this.fire('mouseover');
        });
        element.on('blur', function () {
            this.fire('mouseout');
        });
    }

    CKEDITOR.dialog.prototype =
    {
        destroy: function () {
            this.hide();
            this._.element.remove();
        },

        /**
         * Resizes the dialog.
         * @param {Number} width The width of the dialog in pixels.
         * @param {Number} height The height of the dialog in pixels.
         * @function
         * @example
         * dialogObj.resize( 800, 640 );
         */
        resize: (function () {
            return function (width, height) {
                if (this._.contentSize && this._.contentSize.width == width && this._.contentSize.height == height)
                    return;

                CKEDITOR.dialog.fire('resize',
                    {
                        dialog: this,
                        skin: this._.editor.skinName,
                        width: width,
                        height: height
                    }, this._.editor);

                this.fire('resize',
                    {
                        skin: this._.editor.skinName,
                        width: width,
                        height: height
                    }, this._.editor);

                // Update dialog position when dimension get changed in RTL.
                if (this._.editor.lang.dir == 'rtl' && this._.position)
                    this._.position.x = CKEDITOR.document.getWindow().getViewPaneSize().width -
                        this._.contentSize.width - parseInt(this._.element.getFirst().getStyle('right'), 10);

                this._.contentSize = {width: width, height: height};
            };
        })(),

        /**
         * Gets the current size of the dialog in pixels.
         * @returns {Object} An object with "width" and "height" properties.
         * @example
         * var width = dialogObj.getSize().width;
         */
        getSize: function () {
            var element = this._.element.getFirst();
            return {width: element.$.offsetWidth || 0, height: element.$.offsetHeight || 0};
        },

        /**
         * Moves the dialog to an (x, y) coordinate relative to the window.
         * @function
         * @param {Number} x The target x-coordinate.
         * @param {Number} y The target y-coordinate.
         * @param {Boolean} save Flag indicate whether the dialog position should be remembered on next open up.
         * @example
         * dialogObj.move( 10, 40 );
         */
        move: (function () {
            var isFixed;
            return function (x, y, save) {
                // The dialog may be fixed positioned or absolute positioned. Ask the
                // browser what is the current situation first.
                var element = this._.element.getFirst(),
                    rtl = this._.editor.lang.dir == 'rtl';

                if (isFixed === undefined)
                    isFixed = element.getComputedStyle('position') == 'fixed';

                if (isFixed && this._.position && this._.position.x == x && this._.position.y == y)
                    return;

                // Save the current position.
                this._.position = {x: x, y: y};

                // If not fixed positioned, add scroll position to the coordinates.
                if (!isFixed) {
                    var scrollPosition = CKEDITOR.document.getWindow().getScrollPosition();
                    x += scrollPosition.x;
                    y += scrollPosition.y;
                }

                // Translate coordinate for RTL.
                if (rtl) {
                    var dialogSize = this.getSize(),
                        viewPaneSize = CKEDITOR.document.getWindow().getViewPaneSize();
                    x = viewPaneSize.width - dialogSize.width - x;
                }

                var styles = {'top': ( y > 0 ? y : 0 ) + 'px'};
                styles[rtl ? 'right' : 'left'] = ( x > 0 ? x : 0 ) + 'px';

                element.setStyles(styles);

                save && ( this._.moved = 1 );
            };
        })(),

        /**
         * Gets the dialog's position in the window.
         * @returns {Object} An object with "x" and "y" properties.
         * @example
         * var dialogX = dialogObj.getPosition().x;
         */
        getPosition: function () {
            return CKEDITOR.tools.extend({}, this._.position);
        },

        /**
         * Shows the dialog box.
         * @example
         * dialogObj.show();
         */
        show: function () {
            // Insert the dialog's element to the root document.
            var element = this._.element;
            var definition = this.definition;
            if (!( element.getParent() && element.getParent().equals(CKEDITOR.document.getBody()) ))
                element.appendTo(CKEDITOR.document.getBody());
            else
                element.setStyle('display', 'block');

            // FIREFOX BUG: Fix vanishing caret for Firefox 2 or Gecko 1.8.
            if (CKEDITOR.env.gecko && CKEDITOR.env.version < 10900) {
                var dialogElement = this.parts.dialog;
                dialogElement.setStyle('position', 'absolute');
                setTimeout(function () {
                    dialogElement.setStyle('position', 'fixed');
                }, 0);
            }


            // First, set the dialog to an appropriate size.
            this.resize(this._.contentSize && this._.contentSize.width || definition.width || definition.minWidth,
                this._.contentSize && this._.contentSize.height || definition.height || definition.minHeight);

            // Reset all inputs back to their default value.
            this.reset();

            // Select the first tab by default.
            this.selectPage(this.definition.contents[0].id);

            // Set z-index.
            if (CKEDITOR.dialog._.currentZIndex === null)
                CKEDITOR.dialog._.currentZIndex = this._.editor.config.baseFloatZIndex;
            this._.element.getFirst().setStyle('z-index', CKEDITOR.dialog._.currentZIndex += 10);

            // Maintain the dialog ordering and dialog cover.
            if (CKEDITOR.dialog._.currentTop === null) {
                CKEDITOR.dialog._.currentTop = this;
                this._.parentDialog = null;
                showCover(this._.editor);

            }
            else {
                this._.parentDialog = CKEDITOR.dialog._.currentTop;
                var parentElement = this._.parentDialog.getElement().getFirst();
                parentElement.$.style.zIndex -= Math.floor(this._.editor.config.baseFloatZIndex / 2);
                CKEDITOR.dialog._.currentTop = this;
            }

            element.on('keydown', accessKeyDownHandler);
            element.on(CKEDITOR.env.opera ? 'keypress' : 'keyup', accessKeyUpHandler);

            // Reset the hasFocus state.
            this._.hasFocus = false;

            CKEDITOR.tools.setTimeout(function () {
                    this.layout();
                    this.parts.dialog.setStyle('visibility', '');

                    // Execute onLoad for the first show.
                    this.fireOnce('load', {});
                    CKEDITOR.ui.fire('ready', this);

                    this.fire('show', {});
                    this._.editor.fire('dialogShow', this);

                    // Save the initial values of the dialog.
                    this.foreach(function (contentObj) {
                        contentObj.setInitValue && contentObj.setInitValue();
                    });

                },
                100, this);
        },

        /**
         * Rearrange the dialog to its previous position or the middle of the window.
         * @since 3.5
         */
        layout: function () {
            var viewSize = CKEDITOR.document.getWindow().getViewPaneSize(),
                dialogSize = this.getSize();

            this.move(this._.moved ? this._.position.x : ( viewSize.width - dialogSize.width ) / 2,
                this._.moved ? this._.position.y : ( viewSize.height - dialogSize.height ) / 2);
        },

        /**
         * Executes a function for each UI element.
         * @param {Function} fn Function to execute for each UI element.
         * @returns {CKEDITOR.dialog} The current dialog object.
         */
        foreach: function (fn) {
            for (var i in this._.contents) {
                for (var j in this._.contents[i])
                    fn.call(this, this._.contents[i][j]);
            }
            return this;
        },

        /**
         * Resets all input values in the dialog.
         * @example
         * dialogObj.reset();
         * @returns {CKEDITOR.dialog} The current dialog object.
         */
        reset: (function () {
            var fn = function (widget) {
                if (widget.reset) widget.reset(1);
            };
            return function () {
                this.foreach(fn);
                return this;
            };
        })(),


        /**
         * Calls the {@link CKEDITOR.dialog.definition.uiElement#setup} method of each of the UI elements, with the arguments passed through it.
         * It is usually being called when the dialog is opened, to put the initial value inside the field.
         * @example
         * dialogObj.setupContent();
         * @example
         * var timestamp = ( new Date() ).valueOf();
         * dialogObj.setupContent( timestamp );
         */
        setupContent: function () {
            var args = arguments;
            this.foreach(function (widget) {
                if (widget.setup)
                    widget.setup.apply(widget, args);
            });
        },

        /**
         * Calls the {@link CKEDITOR.dialog.definition.uiElement#commit} method of each of the UI elements, with the arguments passed through it.
         * It is usually being called when the user confirms the dialog, to process the values.
         * @example
         * dialogObj.commitContent();
         * @example
         * var timestamp = ( new Date() ).valueOf();
         * dialogObj.commitContent( timestamp );
         */
        commitContent: function () {
            var args = arguments;
            this.foreach(function (widget) {
                // Make sure IE triggers "change" event on last focused input before closing the dialog. (#7915)
                if (CKEDITOR.env.ie && this._.currentFocusIndex == widget.focusIndex)
                    widget.getInputElement().$.blur();

                if (widget.commit)
                    widget.commit.apply(widget, args);
            });
        },

        /**
         * Hides the dialog box.
         * @example
         * dialogObj.hide();
         */
        hide: function () {
            if (!this.parts.dialog.isVisible())
                return;

            this.fire('hide', {});
            this._.editor.fire('dialogHide', this);
            // Reset the tab page.
            this.selectPage(this._.tabIdList[0]);
            var element = this._.element;
            element.setStyle('display', 'none');
            this.parts.dialog.setStyle('visibility', 'hidden');
            // Unregister all access keys associated with this dialog.
            unregisterAccessKey(this);

            // Close any child(top) dialogs first.
            while (CKEDITOR.dialog._.currentTop != this)
                CKEDITOR.dialog._.currentTop.hide();

            // Maintain dialog ordering and remove cover if needed.
            if (!this._.parentDialog)
                hideCover();
            else {
                var parentElement = this._.parentDialog.getElement().getFirst();
                parentElement.setStyle('z-index', parseInt(parentElement.$.style.zIndex, 10) + Math.floor(this._.editor.config.baseFloatZIndex / 2));
            }
            CKEDITOR.dialog._.currentTop = this._.parentDialog;

            // Deduct or clear the z-index.
            if (!this._.parentDialog) {
                CKEDITOR.dialog._.currentZIndex = null;

                // Remove access key handlers.
                element.removeListener('keydown', accessKeyDownHandler);
                element.removeListener(CKEDITOR.env.opera ? 'keypress' : 'keyup', accessKeyUpHandler);

                var editor = this._.editor;
                editor.focus();

                if (editor.mode == 'wysiwyg' && CKEDITOR.env.ie) {
                    var selection = editor.getSelection();
                    selection && selection.unlock(true);
                }
            }
            else
                CKEDITOR.dialog._.currentZIndex -= 10;

            delete this._.parentDialog;
            // Reset the initial values of the dialog.
            this.foreach(function (contentObj) {
                contentObj.resetInitValue && contentObj.resetInitValue();
            });
        },

        /**
         * Adds a tabbed page into the dialog.
         * @param {Object} contents Content definition.
         * @example
         */
        addPage: function (contents) {
            var pageHtml = [],
                titleHtml = contents.label ? ' title="' + CKEDITOR.tools.htmlEncode(contents.label) + '"' : '',
                elements = contents.elements,
                vbox = CKEDITOR.dialog._.uiElementBuilders.vbox.build(this,
                    {
                        type: 'vbox',
                        className: 'cke_dialog_page_contents',
                        children: contents.elements,
                        expand: !!contents.expand,
                        padding: contents.padding,
                        style: contents.style || 'width: 100%;height:100%'
                    }, pageHtml);

            // Create the HTML for the tab and the content block.
            var page = CKEDITOR.dom.element.createFromHtml(pageHtml.join(''));
            page.setAttribute('role', 'tabpanel');

            var env = CKEDITOR.env;
            var tabId = 'cke_' + contents.id + '_' + CKEDITOR.tools.getNextNumber(),
                tab = CKEDITOR.dom.element.createFromHtml([
                    '<a class="cke_dialog_tab"',
                    ( this._.pageCount > 0 ? ' cke_last' : 'cke_first' ),
                    titleHtml,
                    ( !!contents.hidden ? ' style="display:none"' : '' ),
                    ' id="', tabId, '"',
                    env.gecko && env.version >= 10900 && !env.hc ? '' : ' href="javascript:void(0)"',
                    ' tabIndex="-1"',
                    ' hidefocus="true"',
                    ' role="tab">',
                    contents.label,
                    '</a>'
                ].join(''));

            page.setAttribute('aria-labelledby', tabId);

            // Take records for the tabs and elements created.
            this._.tabs[contents.id] = [tab, page];
            this._.tabIdList.push(contents.id);
            !contents.hidden && this._.pageCount++;
            this._.lastTab = tab;
            this.updateStyle();

            var contentMap = this._.contents[contents.id] = {},
                cursor,
                children = vbox.getChild();

            while (( cursor = children.shift() )) {
                contentMap[cursor.id] = cursor;
                if (typeof( cursor.getChild ) == 'function')
                    children.push.apply(children, cursor.getChild());
            }

            // Attach the DOM nodes.

            page.setAttribute('name', contents.id);
            page.appendTo(this.parts.contents);

            tab.unselectable();
            this.parts.tabs.append(tab);

            // Add access key handlers if access key is defined.
            if (contents.accessKey) {
                registerAccessKey(this, this, 'CTRL+' + contents.accessKey,
                    tabAccessKeyDown, tabAccessKeyUp);
                this._.accessKeyMap['CTRL+' + contents.accessKey] = contents.id;
            }
        },

        /**
         * Activates a tab page in the dialog by its id.
         * @param {String} id The id of the dialog tab to be activated.
         * @example
         * dialogObj.selectPage( 'tab_1' );
         */
        selectPage: function (id) {
            if (this._.currentTabId == id)
                return;

            // Returning true means that the event has been canceled
            if (this.fire('selectPage', {page: id, currentPage: this._.currentTabId}) === true)
                return;

            // Hide the non-selected tabs and pages.
            for (var i in this._.tabs) {
                var tab = this._.tabs[i][0],
                    page = this._.tabs[i][1];
                if (i != id) {
                    tab.removeClass('cke_dialog_tab_selected');
                    page.hide();
                }
                page.setAttribute('aria-hidden', i != id);
            }

            var selected = this._.tabs[id];
            selected[0].addClass('cke_dialog_tab_selected');

            // [IE] an invisible input[type='text'] will enlarge it's width
            // if it's value is long when it shows, so we clear it's value
            // before it shows and then recover it (#5649)
            if (CKEDITOR.env.ie6Compat || CKEDITOR.env.ie7Compat) {
                clearOrRecoverTextInputValue(selected[1]);
                selected[1].show();
                setTimeout(function () {
                    clearOrRecoverTextInputValue(selected[1], 1);
                }, 0);
            }
            else
                selected[1].show();

            this._.currentTabId = id;
            this._.currentTabIndex = CKEDITOR.tools.indexOf(this._.tabIdList, id);
        },

        // Dialog state-specific style updates.
        updateStyle: function () {
            // If only a single page shown, a different style is used in the central pane.
            this.parts.dialog[( this._.pageCount === 1 ? 'add' : 'remove' ) + 'Class']('cke_single_page');
        },

        /**
         * Hides a page's tab away from the dialog.
         * @param {String} id The page's Id.
         * @example
         * dialog.hidePage( 'tab_3' );
         */
        hidePage: function (id) {
            var tab = this._.tabs[id] && this._.tabs[id][0];
            if (!tab || this._.pageCount == 1 || !tab.isVisible())
                return;
            // Switch to other tab first when we're hiding the active tab.
            else if (id == this._.currentTabId)
                this.selectPage(getPreviousVisibleTab.call(this));

            tab.hide();
            this._.pageCount--;
            this.updateStyle();
        },

        /**
         * Unhides a page's tab.
         * @param {String} id The page's Id.
         * @example
         * dialog.showPage( 'tab_2' );
         */
        showPage: function (id) {
            var tab = this._.tabs[id] && this._.tabs[id][0];
            if (!tab)
                return;
            tab.show();
            this._.pageCount++;
            this.updateStyle();
        },

        /**
         * Gets the root DOM element of the dialog.
         * @returns {CKEDITOR.dom.element} The &lt;span&gt; element containing this dialog.
         * @example
         * var dialogElement = dialogObj.getElement().getFirst();
         * dialogElement.setStyle( 'padding', '5px' );
         */
        getElement: function () {
            return this._.element;
        },

        /**
         * Gets the name of the dialog.
         * @returns {String} The name of this dialog.
         * @example
         * var dialogName = dialogObj.getName();
         */
        getName: function () {
            return this._.name;
        },

        /**
         * Gets a dialog UI element object from a dialog page.
         * @param {String} pageId id of dialog page.
         * @param {String} elementId id of UI element.
         * @example
         * dialogObj.getContentElement( 'tabId', 'elementId' ).setValue( 'Example' );
         * @returns {CKEDITOR.ui.dialog.uiElement} The dialog UI element.
         */
        getContentElement: function (pageId, elementId) {
            var page = this._.contents[pageId];
            return page && page[elementId];
        },

        /**
         * Gets the value of a dialog UI element.
         * @param {String} pageId id of dialog page.
         * @param {String} elementId id of UI element.
         * @example
         * alert( dialogObj.getValueOf( 'tabId', 'elementId' ) );
         * @returns {Object} The value of the UI element.
         */
        getValueOf: function (pageId, elementId) {
            return this.getContentElement(pageId, elementId).getValue();
        },

        /**
         * Sets the value of a dialog UI element.
         * @param {String} pageId id of the dialog page.
         * @param {String} elementId id of the UI element.
         * @param {Object} value The new value of the UI element.
         * @example
         * dialogObj.setValueOf( 'tabId', 'elementId', 'Example' );
         */
        setValueOf: function (pageId, elementId, value) {
            return this.getContentElement(pageId, elementId).setValue(value);
        },

        /**
         * Gets the UI element of a button in the dialog's button row.
         * @param {String} id The id of the button.
         * @example
         * @returns {CKEDITOR.ui.dialog.button} The button object.
         */
        getButton: function (id) {
            return this._.buttons[id];
        },

        /**
         * Simulates a click to a dialog button in the dialog's button row.
         * @param {String} id The id of the button.
         * @example
         * @returns The return value of the dialog's "click" event.
         */
        click: function (id) {
            return this._.buttons[id].click();
        },

        /**
         * Disables a dialog button.
         * @param {String} id The id of the button.
         * @example
         */
        disableButton: function (id) {
            return this._.buttons[id].disable();
        },

        /**
         * Enables a dialog button.
         * @param {String} id The id of the button.
         * @example
         */
        enableButton: function (id) {
            return this._.buttons[id].enable();
        },

        /**
         * Gets the number of pages in the dialog.
         * @returns {Number} Page count.
         */
        getPageCount: function () {
            return this._.pageCount;
        },

        /**
         * Gets the editor instance which opened this dialog.
         * @returns {CKEDITOR.editor} Parent editor instances.
         */
        getParentEditor: function () {
            return this._.editor;
        },

        /**
         * Gets the element that was selected when opening the dialog, if any.
         * @returns {CKEDITOR.dom.element} The element that was selected, or null.
         */
        getSelectedElement: function () {
            return this.getParentEditor().getSelection().getSelectedElement();
        },

        /**
         * Adds element to dialog's focusable list.
         *
         * @param {CKEDITOR.dom.element} element
         * @param {Number} [index]
         */
        addFocusable: function (element, index) {
            if (typeof index == 'undefined') {
                index = this._.focusList.length;
                this._.focusList.push(new Focusable(this, element, index));
            }
            else {
                this._.focusList.splice(index, 0, new Focusable(this, element, index));
                for (var i = index + 1; i < this._.focusList.length; i++)
                    this._.focusList[i].focusIndex++;
            }
        }
    };

    CKEDITOR.tools.extend(CKEDITOR.dialog,
        /**
         * @lends CKEDITOR.dialog
         */
        {
            /**
             * Registers a dialog.
             * @param {String} name The dialog's name.
             * @param {Function|String} dialogDefinition
             * A function returning the dialog's definition, or the URL to the .js file holding the function.
             * The function should accept an argument "editor" which is the current editor instance, and
             * return an object conforming to {@link CKEDITOR.dialog.definition}.
             * @see CKEDITOR.dialog.definition
             * @example
             * // Full sample plugin, which does not only register a dialog window but also adds an item to the context menu.
             * // To open the dialog window, choose "Open dialog" in the context menu.
             * CKEDITOR.plugins.add( 'myplugin',
             * {
			 * 	init: function( editor )
			 * 	{
			 * 		editor.addCommand( 'mydialog',new CKEDITOR.dialogCommand( 'mydialog' ) );
			 *
			 * 		if ( editor.contextMenu )
			 * 		{
			 * 			editor.addMenuGroup( 'mygroup', 10 );
			 * 			editor.addMenuItem( 'My Dialog',
			 * 			{
			 * 				label : 'Open dialog',
			 * 				command : 'mydialog',
			 * 				group : 'mygroup'
			 * 			});
			 * 			editor.contextMenu.addListener( function( element )
			 * 			{
			 *  				return { 'My Dialog' : CKEDITOR.TRISTATE_OFF };
			 * 			});
			 * 		}
			 *
			 * 		<strong>CKEDITOR.dialog.add</strong>( 'mydialog', function( api )
			 * 		{
			 * 			// CKEDITOR.dialog.definition
			 * 			var <strong>dialogDefinition</strong> =
			 * 			{
			 * 				title : 'Sample dialog',
			 * 				minWidth : 390,
			 * 				minHeight : 130,
			 * 				contents : [
			 * 					{
			 * 						id : 'tab1',
			 * 						label : 'Label',
			 * 						title : 'Title',
			 * 						expand : true,
			 * 						padding : 0,
			 * 						elements :
			 * 						[
			 * 							{
			 * 								type : 'html',
			 * 								html : '&lt;p&gt;This is some sample HTML content.&lt;/p&gt;'
			 * 							},
			 * 							{
			 * 								type : 'textarea',
			 * 								id : 'textareaId',
			 * 								rows : 4,
			 * 								cols : 40
			 * 							}
			 * 						]
			 * 					}
			 * 				],
			 * 				buttons : [ CKEDITOR.dialog.okButton, CKEDITOR.dialog.cancelButton ],
			 * 				onOk : function() {
			 * 					// "this" is now a CKEDITOR.dialog object.
			 * 					// Accessing dialog elements:
			 * 					var textareaObj = this.<strong>getContentElement</strong>( 'tab1', 'textareaId' );
			 * 					alert( "You have entered: " + textareaObj.getValue() );
			 * 				}
			 * 			};
			 *
			 * 			return dialogDefinition;
			 * 		} );
			 * 	}
			 * } );
             *
             * CKEDITOR.replace( 'editor1', { extraPlugins : 'myplugin' } );
             */
            add: function (name, dialogDefinition) {
                // Avoid path registration from multiple instances override definition.
                if (!this._.dialogDefinitions[name]
                    || typeof  dialogDefinition == 'function')
                    this._.dialogDefinitions[name] = dialogDefinition;
            },

            exists: function (name) {
                return !!this._.dialogDefinitions[name];
            },

            getCurrent: function () {
                return CKEDITOR.dialog._.currentTop;
            },

            /**
             * The default OK button for dialogs. Fires the "ok" event and closes the dialog if the event succeeds.
             * @static
             * @field
             * @example
             * @type Function
             */
            okButton: (function () {
                var retval = function (editor, override) {
                    override = override || {};
                    return CKEDITOR.tools.extend({
                        id: 'ok',
                        type: 'button',
                        label: editor.lang.common.ok,
                        'class': 'cke_dialog_ui_button_ok',
                        onClick: function (evt) {
                            var dialog = evt.data.dialog;
                            if (dialog.fire('ok', {hide: true}).hide !== false)
                                dialog.hide();
                        }
                    }, override, true);
                };
                retval.type = 'button';
                retval.override = function (override) {
                    return CKEDITOR.tools.extend(function (editor) {
                            return retval(editor, override);
                        },
                        {type: 'button'}, true);
                };
                return retval;
            })(),

            /**
             * The default cancel button for dialogs. Fires the "cancel" event and closes the dialog if no UI element value changed.
             * @static
             * @field
             * @example
             * @type Function
             */
            cancelButton: (function () {
                var retval = function (editor, override) {
                    override = override || {};
                    return CKEDITOR.tools.extend({
                        id: 'cancel',
                        type: 'button',
                        label: editor.lang.common.cancel,
                        'class': 'cke_dialog_ui_button_cancel',
                        onClick: function (evt) {
                            var dialog = evt.data.dialog;
                            if (dialog.fire('cancel', {hide: true}).hide !== false)
                                dialog.hide();
                        }
                    }, override, true);
                };
                retval.type = 'button';
                retval.override = function (override) {
                    return CKEDITOR.tools.extend(function (editor) {
                            return retval(editor, override);
                        },
                        {type: 'button'}, true);
                };
                return retval;
            })(),

            /**
             * Registers a dialog UI element.
             * @param {String} typeName The name of the UI element.
             * @param {Function} builder The function to build the UI element.
             * @example
             */
            addUIElement: function (typeName, builder) {
                this._.uiElementBuilders[typeName] = builder;
            }
        });

    CKEDITOR.dialog._ =
    {
        uiElementBuilders: {},

        dialogDefinitions: {},

        currentTop: null,

        currentZIndex: null
    };

    // "Inherit" (copy actually) from CKEDITOR.event.
    CKEDITOR.event.implementOn(CKEDITOR.dialog);
    CKEDITOR.event.implementOn(CKEDITOR.dialog.prototype, true);

    var defaultDialogDefinition =
    {
        resizable: CKEDITOR.DIALOG_RESIZE_BOTH,
        minWidth: 600,
        minHeight: 400,
        buttons: [CKEDITOR.dialog.okButton, CKEDITOR.dialog.cancelButton]
    };

    // Tool function used to return an item from an array based on its id
    // property.
    var getById = function (array, id, recurse) {
        for (var i = 0, item; ( item = array[i] ); i++) {
            if (item.id == id)
                return item;
            if (recurse && item[recurse]) {
                var retval = getById(item[recurse], id, recurse);
                if (retval)
                    return retval;
            }
        }
        return null;
    };

    // Tool function used to add an item into an array.
    var addById = function (array, newItem, nextSiblingId, recurse, nullIfNotFound) {
        if (nextSiblingId) {
            for (var i = 0, item; ( item = array[i] ); i++) {
                if (item.id == nextSiblingId) {
                    array.splice(i, 0, newItem);
                    return newItem;
                }

                if (recurse && item[recurse]) {
                    var retval = addById(item[recurse], newItem, nextSiblingId, recurse, true);
                    if (retval)
                        return retval;
                }
            }

            if (nullIfNotFound)
                return null;
        }

        array.push(newItem);
        return newItem;
    };

    // Tool function used to remove an item from an array based on its id.
    var removeById = function (array, id, recurse) {
        for (var i = 0, item; ( item = array[i] ); i++) {
            if (item.id == id)
                return array.splice(i, 1);
            if (recurse && item[recurse]) {
                var retval = removeById(item[recurse], id, recurse);
                if (retval)
                    return retval;
            }
        }
        return null;
    };

    /**
     * This class is not really part of the API. It is the "definition" property value
     * passed to "dialogDefinition" event handlers.
     * @constructor
     * @name CKEDITOR.dialog.definitionObject
     * @extends CKEDITOR.dialog.definition
     * @example
     * CKEDITOR.on( 'dialogDefinition', function( evt )
     *    {
	 * 		var definition = evt.data.definition;
	 * 		var content = definition.getContents( 'page1' );
	 * 		...
	 * 	} );
     */
    var definitionObject = function (dialog, dialogDefinition) {
        // TODO : Check if needed.
        this.dialog = dialog;

        // Transform the contents entries in contentObjects.
        var contents = dialogDefinition.contents;
        for (var i = 0, content; ( content = contents[i] ); i++)
            contents[i] = content && new contentObject(dialog, content);

        CKEDITOR.tools.extend(this, dialogDefinition);
    };

    definitionObject.prototype =
    /** @lends CKEDITOR.dialog.definitionObject.prototype */
    {
        /**
         * Gets a content definition.
         * @param {String} id The id of the content definition.
         * @returns {CKEDITOR.dialog.definition.content} The content definition
         *        matching id.
         */
        getContents: function (id) {
            return getById(this.contents, id);
        },

        /**
         * Gets a button definition.
         * @param {String} id The id of the button definition.
         * @returns {CKEDITOR.dialog.definition.button} The button definition
         *        matching id.
         */
        getButton: function (id) {
            return getById(this.buttons, id);
        },

        /**
         * Adds a content definition object under this dialog definition.
         * @param {CKEDITOR.dialog.definition.content} contentDefinition The
         *        content definition.
         * @param {String} [nextSiblingId] The id of an existing content
         *        definition which the new content definition will be inserted
         *        before. Omit if the new content definition is to be inserted as
         *        the last item.
         * @returns {CKEDITOR.dialog.definition.content} The inserted content
         *        definition.
         */
        addContents: function (contentDefinition, nextSiblingId) {
            return addById(this.contents, contentDefinition, nextSiblingId);
        },

        /**
         * Adds a button definition object under this dialog definition.
         * @param {CKEDITOR.dialog.definition.button} buttonDefinition The
         *        button definition.
         * @param {String} [nextSiblingId] The id of an existing button
         *        definition which the new button definition will be inserted
         *        before. Omit if the new button definition is to be inserted as
         *        the last item.
         * @returns {CKEDITOR.dialog.definition.button} The inserted button
         *        definition.
         */
        addButton: function (buttonDefinition, nextSiblingId) {
            return addById(this.buttons, buttonDefinition, nextSiblingId);
        },

        /**
         * Removes a content definition from this dialog definition.
         * @param {String} id The id of the content definition to be removed.
         * @returns {CKEDITOR.dialog.definition.content} The removed content
         *        definition.
         */
        removeContents: function (id) {
            removeById(this.contents, id);
        },

        /**
         * Removes a button definition from the dialog definition.
         * @param {String} id The id of the button definition to be removed.
         * @returns {CKEDITOR.dialog.definition.button} The removed button
         *        definition.
         */
        removeButton: function (id) {
            removeById(this.buttons, id);
        }
    };

    /**
     * This class is not really part of the API. It is the template of the
     * objects representing content pages inside the
     * CKEDITOR.dialog.definitionObject.
     * @constructor
     * @name CKEDITOR.dialog.definition.contentObject
     * @example
     * CKEDITOR.on( 'dialogDefinition', function( evt )
     *    {
	 * 		var definition = evt.data.definition;
	 * 		var content = definition.getContents( 'page1' );
	 *		content.remove( 'textInput1' );
	 * 		...
	 * 	} );
     */
    function contentObject(dialog, contentDefinition) {
        this._ =
        {
            dialog: dialog
        };

        CKEDITOR.tools.extend(this, contentDefinition);
    }

    contentObject.prototype =
    /** @lends CKEDITOR.dialog.definition.contentObject.prototype */
    {
        /**
         * Gets a UI element definition under the content definition.
         * @param {String} id The id of the UI element definition.
         * @returns {CKEDITOR.dialog.definition.uiElement}
         */
        get: function (id) {
            return getById(this.elements, id, 'children');
        },

        /**
         * Adds a UI element definition to the content definition.
         * @param {CKEDITOR.dialog.definition.uiElement} elementDefinition The
         *        UI elemnet definition to be added.
         * @param {String} nextSiblingId The id of an existing UI element
         *        definition which the new UI element definition will be inserted
         *        before. Omit if the new button definition is to be inserted as
         *        the last item.
         * @returns {CKEDITOR.dialog.definition.uiElement} The element
         *        definition inserted.
         */
        add: function (elementDefinition, nextSiblingId) {
            return addById(this.elements, elementDefinition, nextSiblingId, 'children');
        },

        /**
         * Removes a UI element definition from the content definition.
         * @param {String} id The id of the UI element definition to be
         *        removed.
         * @returns {CKEDITOR.dialog.definition.uiElement} The element
         *        definition removed.
         * @example
         */
        remove: function (id) {
            removeById(this.elements, id, 'children');
        }
    };

    function initDragAndDrop(dialog) {
        var lastCoords = null,
            abstractDialogCoords = null,
            element = dialog.getElement().getFirst(),
            editor = dialog.getParentEditor(),
            magnetDistance = editor.config.dialog_magnetDistance,
            margins = editor.skin.margins || [0, 0, 0, 0];

        if (typeof magnetDistance == 'undefined')
            magnetDistance = 20;

        function mouseMoveHandler(evt) {
            var dialogSize = dialog.getSize(),
                viewPaneSize = CKEDITOR.document.getWindow().getViewPaneSize(),
                x = evt.data.$.screenX,
                y = evt.data.$.screenY,
                dx = x - lastCoords.x,
                dy = y - lastCoords.y,
                realX, realY;

            lastCoords = {x: x, y: y};
            abstractDialogCoords.x += dx;
            abstractDialogCoords.y += dy;

            if (abstractDialogCoords.x + margins[3] < magnetDistance)
                realX = -margins[3];
            else if (abstractDialogCoords.x - margins[1] > viewPaneSize.width - dialogSize.width - magnetDistance)
                realX = viewPaneSize.width - dialogSize.width + ( editor.lang.dir == 'rtl' ? 0 : margins[1] );
            else
                realX = abstractDialogCoords.x;

            if (abstractDialogCoords.y + margins[0] < magnetDistance)
                realY = -margins[0];
            else if (abstractDialogCoords.y - margins[2] > viewPaneSize.height - dialogSize.height - magnetDistance)
                realY = viewPaneSize.height - dialogSize.height + margins[2];
            else
                realY = abstractDialogCoords.y;

            dialog.move(realX, realY, 1);

            evt.data.preventDefault();
        }

        function mouseUpHandler(evt) {
            CKEDITOR.document.removeListener('mousemove', mouseMoveHandler);
            CKEDITOR.document.removeListener('mouseup', mouseUpHandler);

            if (CKEDITOR.env.ie6Compat) {
                var coverDoc = currentCover.getChild(0).getFrameDocument();
                coverDoc.removeListener('mousemove', mouseMoveHandler);
                coverDoc.removeListener('mouseup', mouseUpHandler);
            }
        }

        dialog.parts.title.on('mousedown', function (evt) {
            lastCoords = {x: evt.data.$.screenX, y: evt.data.$.screenY};

            CKEDITOR.document.on('mousemove', mouseMoveHandler);
            CKEDITOR.document.on('mouseup', mouseUpHandler);
            abstractDialogCoords = dialog.getPosition();

            if (CKEDITOR.env.ie6Compat) {
                var coverDoc = currentCover.getChild(0).getFrameDocument();
                coverDoc.on('mousemove', mouseMoveHandler);
                coverDoc.on('mouseup', mouseUpHandler);
            }

            evt.data.preventDefault();
        }, dialog);
    }

    function initResizeHandles(dialog) {
        var def = dialog.definition,
            resizable = def.resizable;

        if (resizable == CKEDITOR.DIALOG_RESIZE_NONE)
            return;

        var editor = dialog.getParentEditor();
        var wrapperWidth, wrapperHeight,
            viewSize, origin, startSize,
            dialogCover;

        var mouseDownFn = CKEDITOR.tools.addFunction(function ($event) {
            startSize = dialog.getSize();

            var content = dialog.parts.contents,
                iframeDialog = content.$.getElementsByTagName('iframe').length;

            // Shim to help capturing "mousemove" over iframe.
            if (iframeDialog) {
                dialogCover = CKEDITOR.dom.element.createFromHtml('<div class="cke_dialog_resize_cover" style="height: 100%; position: absolute; width: 100%;"></div>');
                content.append(dialogCover);
            }

            // Calculate the offset between content and chrome size.
            wrapperHeight = startSize.height - dialog.parts.contents.getSize('height', !( CKEDITOR.env.gecko || CKEDITOR.env.opera || CKEDITOR.env.ie && CKEDITOR.env.quirks ));
            wrapperWidth = startSize.width - dialog.parts.contents.getSize('width', 1);

            origin = {x: $event.screenX, y: $event.screenY};

            viewSize = CKEDITOR.document.getWindow().getViewPaneSize();

            CKEDITOR.document.on('mousemove', mouseMoveHandler);
            CKEDITOR.document.on('mouseup', mouseUpHandler);

            if (CKEDITOR.env.ie6Compat) {
                var coverDoc = currentCover.getChild(0).getFrameDocument();
                coverDoc.on('mousemove', mouseMoveHandler);
                coverDoc.on('mouseup', mouseUpHandler);
            }

            $event.preventDefault && $event.preventDefault();
        });

        // Prepend the grip to the dialog.
        dialog.on('load', function () {
            var direction = '';
            if (resizable == CKEDITOR.DIALOG_RESIZE_WIDTH)
                direction = ' cke_resizer_horizontal';
            else if (resizable == CKEDITOR.DIALOG_RESIZE_HEIGHT)
                direction = ' cke_resizer_vertical';
            var resizer = CKEDITOR.dom.element.createFromHtml('<div' +
                ' class="cke_resizer' + direction + ' cke_resizer_' + editor.lang.dir + '"' +
                ' title="' + CKEDITOR.tools.htmlEncode(editor.lang.resize) + '"' +
                ' onmousedown="CKEDITOR.tools.callFunction(' + mouseDownFn + ', event )"></div>');
            dialog.parts.footer.append(resizer, 1);
        });
        editor.on('destroy', function () {
            CKEDITOR.tools.removeFunction(mouseDownFn);
        });

        function mouseMoveHandler(evt) {
            var rtl = editor.lang.dir == 'rtl',
                dx = ( evt.data.$.screenX - origin.x ) * ( rtl ? -1 : 1 ),
                dy = evt.data.$.screenY - origin.y,
                width = startSize.width,
                height = startSize.height,
                internalWidth = width + dx * ( dialog._.moved ? 1 : 2 ),
                internalHeight = height + dy * ( dialog._.moved ? 1 : 2 ),
                element = dialog._.element.getFirst(),
                right = rtl && element.getComputedStyle('right'),
                position = dialog.getPosition();

            if (position.y + internalHeight > viewSize.height)
                internalHeight = viewSize.height - position.y;

            if (( rtl ? right : position.x ) + internalWidth > viewSize.width)
                internalWidth = viewSize.width - ( rtl ? right : position.x );

            // Make sure the dialog will not be resized to the wrong side when it's in the leftmost position for RTL.
            if (( resizable == CKEDITOR.DIALOG_RESIZE_WIDTH || resizable == CKEDITOR.DIALOG_RESIZE_BOTH ))
                width = Math.max(def.minWidth || 0, internalWidth - wrapperWidth);

            if (resizable == CKEDITOR.DIALOG_RESIZE_HEIGHT || resizable == CKEDITOR.DIALOG_RESIZE_BOTH)
                height = Math.max(def.minHeight || 0, internalHeight - wrapperHeight);

            dialog.resize(width, height);

            if (!dialog._.moved)
                dialog.layout();

            evt.data.preventDefault();
        }

        function mouseUpHandler() {
            CKEDITOR.document.removeListener('mouseup', mouseUpHandler);
            CKEDITOR.document.removeListener('mousemove', mouseMoveHandler);

            if (dialogCover) {
                dialogCover.remove();
                dialogCover = null;
            }

            if (CKEDITOR.env.ie6Compat) {
                var coverDoc = currentCover.getChild(0).getFrameDocument();
                coverDoc.removeListener('mouseup', mouseUpHandler);
                coverDoc.removeListener('mousemove', mouseMoveHandler);
            }
        }
    }

    var resizeCover;
    // Caching resuable covers and allowing only one cover
    // on screen.
    var covers = {},
        currentCover;

    function cancelEvent(ev) {
        ev.data.preventDefault(1);
    }

    function showCover(editor) {
        var win = CKEDITOR.document.getWindow();
        var config = editor.config,
            backgroundColorStyle = config.dialog_backgroundCoverColor || 'white',
            backgroundCoverOpacity = config.dialog_backgroundCoverOpacity,
            baseFloatZIndex = config.baseFloatZIndex,
            coverKey = CKEDITOR.tools.genKey(
                backgroundColorStyle,
                backgroundCoverOpacity,
                baseFloatZIndex),
            coverElement = covers[coverKey];

        if (!coverElement) {
            var html = [
                '<div tabIndex="-1" style="position: ', ( CKEDITOR.env.ie6Compat ? 'absolute' : 'fixed' ),
                '; z-index: ', baseFloatZIndex,
                '; top: 0px; left: 0px; ',
                ( !CKEDITOR.env.ie6Compat ? 'background-color: ' + backgroundColorStyle : '' ),
                '" class="cke_dialog_background_cover">'
            ];

            if (CKEDITOR.env.ie6Compat) {
                // Support for custom document.domain in IE.
                var isCustomDomain = CKEDITOR.env.isCustomDomain(),
                    iframeHtml = '<html><body style=\\\'background-color:' + backgroundColorStyle + ';\\\'></body></html>';

                html.push(
                    '<iframe' +
                    ' hidefocus="true"' +
                    ' frameborder="0"' +
                    ' id="cke_dialog_background_iframe"' +
                    ' src="javascript:');

                html.push('void((function(){' +
                    'document.open();' +
                    ( isCustomDomain ? 'document.domain=\'' + document.domain + '\';' : '' ) +
                    'document.write( \'' + iframeHtml + '\' );' +
                    'document.close();' +
                    '})())');

                html.push(
                    '"' +
                    ' style="' +
                    'position:absolute;' +
                    'left:0;' +
                    'top:0;' +
                    'width:100%;' +
                    'height: 100%;' +
                    'progid:DXImageTransform.Microsoft.Alpha(opacity=0)">' +
                    '</iframe>');
            }

            html.push('</div>');

            coverElement = CKEDITOR.dom.element.createFromHtml(html.join(''));
            coverElement.setOpacity(backgroundCoverOpacity != undefined ? backgroundCoverOpacity : 0.5);

            coverElement.on('keydown', cancelEvent);
            coverElement.on('keypress', cancelEvent);
            coverElement.on('keyup', cancelEvent);

            coverElement.appendTo(CKEDITOR.document.getBody());
            covers[coverKey] = coverElement;
        }
        else
            coverElement.show();

        currentCover = coverElement;
        var resizeFunc = function () {
            var size = win.getViewPaneSize();
            coverElement.setStyles(
                {
                    width: size.width + 'px',
                    height: size.height + 'px'
                });
        };

        var scrollFunc = function () {
            var pos = win.getScrollPosition(),
                cursor = CKEDITOR.dialog._.currentTop;
            coverElement.setStyles(
                {
                    left: pos.x + 'px',
                    top: pos.y + 'px'
                });

            if (cursor) {
                do
                {
                    var dialogPos = cursor.getPosition();
                    cursor.move(dialogPos.x, dialogPos.y);
                } while (( cursor = cursor._.parentDialog ));
            }
        };

        resizeCover = resizeFunc;
        win.on('resize', resizeFunc);
        resizeFunc();
        // Using Safari/Mac, focus must be kept where it is (#7027)
        if (!( CKEDITOR.env.mac && CKEDITOR.env.webkit ))
            coverElement.focus();

        if (CKEDITOR.env.ie6Compat) {
            // IE BUG: win.$.onscroll assignment doesn't work.. it must be window.onscroll.
            // So we need to invent a really funny way to make it work.
            var myScrollHandler = function () {
                scrollFunc();
                arguments.callee.prevScrollHandler.apply(this, arguments);
            };
            win.$.setTimeout(function () {
                myScrollHandler.prevScrollHandler = window.onscroll || function () {
                    };
                window.onscroll = myScrollHandler;
            }, 0);
            scrollFunc();
        }
    }

    function hideCover() {
        if (!currentCover)
            return;

        var win = CKEDITOR.document.getWindow();
        currentCover.hide();
        win.removeListener('resize', resizeCover);

        if (CKEDITOR.env.ie6Compat) {
            win.$.setTimeout(function () {
                var prevScrollHandler = window.onscroll && window.onscroll.prevScrollHandler;
                window.onscroll = prevScrollHandler || null;
            }, 0);
        }
        resizeCover = null;
    }

    function removeCovers() {
        for (var coverId in covers)
            covers[coverId].remove();
        covers = {};
    }

    var accessKeyProcessors = {};

    var accessKeyDownHandler = function (evt) {
        var ctrl = evt.data.$.ctrlKey || evt.data.$.metaKey,
            alt = evt.data.$.altKey,
            shift = evt.data.$.shiftKey,
            key = String.fromCharCode(evt.data.$.keyCode),
            keyProcessor = accessKeyProcessors[( ctrl ? 'CTRL+' : '' ) + ( alt ? 'ALT+' : '') + ( shift ? 'SHIFT+' : '' ) + key];

        if (!keyProcessor || !keyProcessor.length)
            return;

        keyProcessor = keyProcessor[keyProcessor.length - 1];
        keyProcessor.keydown && keyProcessor.keydown.call(keyProcessor.uiElement, keyProcessor.dialog, keyProcessor.key);
        evt.data.preventDefault();
    };

    var accessKeyUpHandler = function (evt) {
        var ctrl = evt.data.$.ctrlKey || evt.data.$.metaKey,
            alt = evt.data.$.altKey,
            shift = evt.data.$.shiftKey,
            key = String.fromCharCode(evt.data.$.keyCode),
            keyProcessor = accessKeyProcessors[( ctrl ? 'CTRL+' : '' ) + ( alt ? 'ALT+' : '') + ( shift ? 'SHIFT+' : '' ) + key];

        if (!keyProcessor || !keyProcessor.length)
            return;

        keyProcessor = keyProcessor[keyProcessor.length - 1];
        if (keyProcessor.keyup) {
            keyProcessor.keyup.call(keyProcessor.uiElement, keyProcessor.dialog, keyProcessor.key);
            evt.data.preventDefault();
        }
    };

    var registerAccessKey = function (uiElement, dialog, key, downFunc, upFunc) {
        var procList = accessKeyProcessors[key] || ( accessKeyProcessors[key] = [] );
        procList.push({
            uiElement: uiElement,
            dialog: dialog,
            key: key,
            keyup: upFunc || uiElement.accessKeyUp,
            keydown: downFunc || uiElement.accessKeyDown
        });
    };

    var unregisterAccessKey = function (obj) {
        for (var i in accessKeyProcessors) {
            var list = accessKeyProcessors[i];
            for (var j = list.length - 1; j >= 0; j--) {
                if (list[j].dialog == obj || list[j].uiElement == obj)
                    list.splice(j, 1);
            }
            if (list.length === 0)
                delete accessKeyProcessors[i];
        }
    };

    var tabAccessKeyUp = function (dialog, key) {
        if (dialog._.accessKeyMap[key])
            dialog.selectPage(dialog._.accessKeyMap[key]);
    };

    var tabAccessKeyDown = function (dialog, key) {
    };

    (function () {
        CKEDITOR.ui.dialog =
        {
            /**
             * The base class of all dialog UI elements.
             * @constructor
             * @param {CKEDITOR.dialog} dialog Parent dialog object.
             * @param {CKEDITOR.dialog.definition.uiElement} elementDefinition Element
             * definition. Accepted fields:
             * <ul>
             *    <li><strong>id</strong> (Required) The id of the UI element. See {@link
                *    CKEDITOR.dialog#getContentElement}</li>
             *    <li><strong>type</strong> (Required) The type of the UI element. The
             *    value to this field specifies which UI element class will be used to
             *    generate the final widget.</li>
             *    <li><strong>title</strong> (Optional) The popup tooltip for the UI
             *    element.</li>
             *    <li><strong>hidden</strong> (Optional) A flag that tells if the element
             *    should be initially visible.</li>
             *    <li><strong>className</strong> (Optional) Additional CSS class names
             *    to add to the UI element. Separated by space.</li>
             *    <li><strong>style</strong> (Optional) Additional CSS inline styles
             *    to add to the UI element. A semicolon (;) is required after the last
             *    style declaration.</li>
             *    <li><strong>accessKey</strong> (Optional) The alphanumeric access key
             *    for this element. Access keys are automatically prefixed by CTRL.</li>
             *    <li><strong>on*</strong> (Optional) Any UI element definition field that
             *    starts with <em>on</em> followed immediately by a capital letter and
             *    probably more letters is an event handler. Event handlers may be further
             *    divided into registered event handlers and DOM event handlers. Please
             *    refer to {@link CKEDITOR.ui.dialog.uiElement#registerEvents} and
             *    {@link CKEDITOR.ui.dialog.uiElement#eventProcessors} for more
             *    information.</li>
             * </ul>
             * @param {Array} htmlList
             * List of HTML code to be added to the dialog's content area.
             * @param {Function|String} nodeNameArg
             * A function returning a string, or a simple string for the node name for
             * the root DOM node. Default is 'div'.
             * @param {Function|Object} stylesArg
             * A function returning an object, or a simple object for CSS styles applied
             * to the DOM node. Default is empty object.
             * @param {Function|Object} attributesArg
             * A fucntion returning an object, or a simple object for attributes applied
             * to the DOM node. Default is empty object.
             * @param {Function|String} contentsArg
             * A function returning a string, or a simple string for the HTML code inside
             * the root DOM node. Default is empty string.
             * @example
             */
            uiElement: function (dialog, elementDefinition, htmlList, nodeNameArg, stylesArg, attributesArg, contentsArg) {
                if (arguments.length < 4)
                    return;

                var nodeName = ( nodeNameArg.call ? nodeNameArg(elementDefinition) : nodeNameArg ) || 'div',
                    html = ['<', nodeName, ' '],
                    styles = ( stylesArg && stylesArg.call ? stylesArg(elementDefinition) : stylesArg ) || {},
                    attributes = ( attributesArg && attributesArg.call ? attributesArg(elementDefinition) : attributesArg ) || {},
                    innerHTML = ( contentsArg && contentsArg.call ? contentsArg.call(this, dialog, elementDefinition) : contentsArg ) || '',
                    domId = this.domId = attributes.id || CKEDITOR.tools.getNextId() + '_uiElement',
                    id = this.id = elementDefinition.id,
                    i;

                // Set the id, a unique id is required for getElement() to work.
                attributes.id = domId;

                // Set the type and definition CSS class names.
                var classes = {};
                if (elementDefinition.type)
                    classes['cke_dialog_ui_' + elementDefinition.type] = 1;
                if (elementDefinition.className)
                    classes[elementDefinition.className] = 1;
                if (elementDefinition.disabled)
                    classes['cke_disabled'] = 1;

                var attributeClasses = ( attributes['class'] && attributes['class'].split ) ? attributes['class'].split(' ') : [];
                for (i = 0; i < attributeClasses.length; i++) {
                    if (attributeClasses[i])
                        classes[attributeClasses[i]] = 1;
                }
                var finalClasses = [];
                for (i in classes)
                    finalClasses.push(i);
                attributes['class'] = finalClasses.join(' ');

                // Set the popup tooltop.
                if (elementDefinition.title)
                    attributes.title = elementDefinition.title;

                // Write the inline CSS styles.
                var styleStr = ( elementDefinition.style || '' ).split(';');

                // Element alignment support.
                if (elementDefinition.align) {
                    var align = elementDefinition.align;
                    styles['margin-left'] = align == 'left' ? 0 : 'auto';
                    styles['margin-right'] = align == 'right' ? 0 : 'auto';
                }

                for (i in styles)
                    styleStr.push(i + ':' + styles[i]);
                if (elementDefinition.hidden)
                    styleStr.push('display:none');
                for (i = styleStr.length - 1; i >= 0; i--) {
                    if (styleStr[i] === '')
                        styleStr.splice(i, 1);
                }
                if (styleStr.length > 0)
                    attributes.style = ( attributes.style ? ( attributes.style + '; ' ) : '' ) + styleStr.join('; ');

                // Write the attributes.
                for (i in attributes)
                    html.push(i + '="' + CKEDITOR.tools.htmlEncode(attributes[i]) + '" ');

                // Write the content HTML.
                html.push('>', innerHTML, '</', nodeName, '>');

                // Add contents to the parent HTML array.
                htmlList.push(html.join(''));

                ( this._ || ( this._ = {} ) ).dialog = dialog;

                // Override isChanged if it is defined in element definition.
                if (typeof( elementDefinition.isChanged ) == 'boolean')
                    this.isChanged = function () {
                        return elementDefinition.isChanged;
                    };
                if (typeof( elementDefinition.isChanged ) == 'function')
                    this.isChanged = elementDefinition.isChanged;

                // Overload 'get(set)Value' on definition.
                if (typeof( elementDefinition.setValue ) == 'function') {
                    this.setValue = CKEDITOR.tools.override(this.setValue, function (org) {
                        return function (val) {
                            org.call(this, elementDefinition.setValue.call(this, val));
                        };
                    });
                }

                if (typeof( elementDefinition.getValue ) == 'function') {
                    this.getValue = CKEDITOR.tools.override(this.getValue, function (org) {
                        return function () {
                            return elementDefinition.getValue.call(this, org.call(this));
                        };
                    });
                }

                // Add events.
                CKEDITOR.event.implementOn(this);

                this.registerEvents(elementDefinition);
                if (this.accessKeyUp && this.accessKeyDown && elementDefinition.accessKey)
                    registerAccessKey(this, dialog, 'CTRL+' + elementDefinition.accessKey);

                var me = this;
                dialog.on('load', function () {
                    var input = me.getInputElement();
                    if (input) {
                        var focusClass = me.type in {
                            'checkbox': 1,
                            'ratio': 1
                        } && CKEDITOR.env.ie && CKEDITOR.env.version < 8 ? 'cke_dialog_ui_focused' : '';
                        input.on('focus', function () {
                            dialog._.tabBarMode = false;
                            dialog._.hasFocus = true;
                            me.fire('focus');
                            focusClass && this.addClass(focusClass);

                        });

                        input.on('blur', function () {
                            me.fire('blur');
                            focusClass && this.removeClass(focusClass);
                        });
                    }
                });

                // Register the object as a tab focus if it can be included.
                if (this.keyboardFocusable) {
                    this.tabIndex = elementDefinition.tabIndex || 0;

                    this.focusIndex = dialog._.focusList.push(this) - 1;
                    this.on('focus', function () {
                        dialog._.currentFocusIndex = me.focusIndex;
                    });
                }

                // Completes this object with everything we have in the
                // definition.
                CKEDITOR.tools.extend(this, elementDefinition);
            },

            /**
             * Horizontal layout box for dialog UI elements, auto-expends to available width of container.
             * @constructor
             * @extends CKEDITOR.ui.dialog.uiElement
             * @param {CKEDITOR.dialog} dialog
             * Parent dialog object.
             * @param {Array} childObjList
             * Array of {@link CKEDITOR.ui.dialog.uiElement} objects inside this
             * container.
             * @param {Array} childHtmlList
             * Array of HTML code that correspond to the HTML output of all the
             * objects in childObjList.
             * @param {Array} htmlList
             * Array of HTML code that this element will output to.
             * @param {CKEDITOR.dialog.definition.uiElement} elementDefinition
             * The element definition. Accepted fields:
             * <ul>
             *    <li><strong>widths</strong> (Optional) The widths of child cells.</li>
             *    <li><strong>height</strong> (Optional) The height of the layout.</li>
             *    <li><strong>padding</strong> (Optional) The padding width inside child
             *     cells.</li>
             *    <li><strong>align</strong> (Optional) The alignment of the whole layout
             *    </li>
             * </ul>
             * @example
             */
            hbox: function (dialog, childObjList, childHtmlList, htmlList, elementDefinition) {
                if (arguments.length < 4)
                    return;

                this._ || ( this._ = {} );

                var children = this._.children = childObjList,
                    widths = elementDefinition && elementDefinition.widths || null,
                    height = elementDefinition && elementDefinition.height || null,
                    styles = {},
                    i;
                /** @ignore */
                var innerHTML = function () {
                    var html = ['<tbody><tr class="cke_dialog_ui_hbox">'];
                    for (i = 0; i < childHtmlList.length; i++) {
                        var className = 'cke_dialog_ui_hbox_child',
                            styles = [];
                        if (i === 0)
                            className = 'cke_dialog_ui_hbox_first';
                        if (i == childHtmlList.length - 1)
                            className = 'cke_dialog_ui_hbox_last';
                        html.push('<td class="', className, '" role="presentation" ');
                        if (widths) {
                            if (widths[i])
                                styles.push('width:' + cssLength(widths[i]));
                        }
                        else
                            styles.push('width:' + Math.floor(100 / childHtmlList.length) + '%');
                        if (height)
                            styles.push('height:' + cssLength(height));
                        if (elementDefinition && elementDefinition.padding != undefined)
                            styles.push('padding:' + cssLength(elementDefinition.padding));
                        // In IE Quirks alignment has to be done on table cells. (#7324)
                        if (CKEDITOR.env.ie && CKEDITOR.env.quirks && children[i].align)
                            styles.push('text-align:' + children[i].align);
                        if (styles.length > 0)
                            html.push('style="' + styles.join('; ') + '" ');
                        html.push('>', childHtmlList[i], '</td>');
                    }
                    html.push('</tr></tbody>');
                    return html.join('');
                };

                var attribs = {role: 'presentation'};
                elementDefinition && elementDefinition.align && ( attribs.align = elementDefinition.align );

                CKEDITOR.ui.dialog.uiElement.call(
                    this,
                    dialog,
                    elementDefinition || {type: 'hbox'},
                    htmlList,
                    'table',
                    styles,
                    attribs,
                    innerHTML);
            },

            /**
             * Vertical layout box for dialog UI elements.
             * @constructor
             * @extends CKEDITOR.ui.dialog.hbox
             * @param {CKEDITOR.dialog} dialog
             * Parent dialog object.
             * @param {Array} childObjList
             * Array of {@link CKEDITOR.ui.dialog.uiElement} objects inside this
             * container.
             * @param {Array} childHtmlList
             * Array of HTML code that correspond to the HTML output of all the
             * objects in childObjList.
             * @param {Array} htmlList
             * Array of HTML code that this element will output to.
             * @param {CKEDITOR.dialog.definition.uiElement} elementDefinition
             * The element definition. Accepted fields:
             * <ul>
             *    <li><strong>width</strong> (Optional) The width of the layout.</li>
             *    <li><strong>heights</strong> (Optional) The heights of individual cells.
             *    </li>
             *    <li><strong>align</strong> (Optional) The alignment of the layout.</li>
             *    <li><strong>padding</strong> (Optional) The padding width inside child
             *    cells.</li>
             *    <li><strong>expand</strong> (Optional) Whether the layout should expand
             *    vertically to fill its container.</li>
             * </ul>
             * @example
             */
            vbox: function (dialog, childObjList, childHtmlList, htmlList, elementDefinition) {
                if (arguments.length < 3)
                    return;

                this._ || ( this._ = {} );

                var children = this._.children = childObjList,
                    width = elementDefinition && elementDefinition.width || null,
                    heights = elementDefinition && elementDefinition.heights || null;
                /** @ignore */
                var innerHTML = function () {
                    var html = ['<table role="presentation" cellspacing="0" border="0" '];
                    html.push('style="');
                    if (elementDefinition && elementDefinition.expand)
                        html.push('height:100%;');
                    html.push('width:' + cssLength(width || '100%'), ';');
                    html.push('"');
                    html.push('align="', CKEDITOR.tools.htmlEncode(
                        ( elementDefinition && elementDefinition.align ) || ( dialog.getParentEditor().lang.dir == 'ltr' ? 'left' : 'right' )), '" ');

                    html.push('><tbody>');
                    for (var i = 0; i < childHtmlList.length; i++) {
                        var styles = [];
                        html.push('<tr><td role="presentation" ');
                        if (width)
                            styles.push('width:' + cssLength(width || '100%'));
                        if (heights)
                            styles.push('height:' + cssLength(heights[i]));
                        else if (elementDefinition && elementDefinition.expand)
                            styles.push('height:' + Math.floor(100 / childHtmlList.length) + '%');
                        if (elementDefinition && elementDefinition.padding != undefined)
                            styles.push('padding:' + cssLength(elementDefinition.padding));
                        // In IE Quirks alignment has to be done on table cells. (#7324)
                        if (CKEDITOR.env.ie && CKEDITOR.env.quirks && children[i].align)
                            styles.push('text-align:' + children[i].align);
                        if (styles.length > 0)
                            html.push('style="', styles.join('; '), '" ');
                        html.push(' class="cke_dialog_ui_vbox_child">', childHtmlList[i], '</td></tr>');
                    }
                    html.push('</tbody></table>');
                    return html.join('');
                };
                CKEDITOR.ui.dialog.uiElement.call(this, dialog, elementDefinition || {type: 'vbox'}, htmlList, 'div', null, {role: 'presentation'}, innerHTML);
            }
        };
    })();

    CKEDITOR.ui.dialog.uiElement.prototype =
    {
        /**
         * Gets the root DOM element of this dialog UI object.
         * @returns {CKEDITOR.dom.element} Root DOM element of UI object.
         * @example
         * uiElement.getElement().hide();
         */
        getElement: function () {
            return CKEDITOR.document.getById(this.domId);
        },

        /**
         * Gets the DOM element that the user inputs values.
         * This function is used by setValue(), getValue() and focus(). It should
         * be overrided in child classes where the input element isn't the root
         * element.
         * @returns {CKEDITOR.dom.element} The element where the user input values.
         * @example
         * var rawValue = textInput.getInputElement().$.value;
         */
        getInputElement: function () {
            return this.getElement();
        },

        /**
         * Gets the parent dialog object containing this UI element.
         * @returns {CKEDITOR.dialog} Parent dialog object.
         * @example
         * var dialog = uiElement.getDialog();
         */
        getDialog: function () {
            return this._.dialog;
        },

        /**
         * Sets the value of this dialog UI object.
         * @param {Object} value The new value.
         * @param {Boolean} noChangeEvent Internal commit, to supress 'change' event on this element.
         * @returns {CKEDITOR.dialog.uiElement} The current UI element.
         * @example
         * uiElement.setValue( 'Dingo' );
         */
        setValue: function (value, noChangeEvent) {
            this.getInputElement().setValue(value);
            !noChangeEvent && this.fire('change', {value: value});
            return this;
        },

        /**
         * Gets the current value of this dialog UI object.
         * @returns {Object} The current value.
         * @example
         * var myValue = uiElement.getValue();
         */
        getValue: function () {
            return this.getInputElement().getValue();
        },

        /**
         * Tells whether the UI object's value has changed.
         * @returns {Boolean} true if changed, false if not changed.
         * @example
         * if ( uiElement.isChanged() )
         * &nbsp;&nbsp;confirm( 'Value changed! Continue?' );
         */
        isChanged: function () {
            // Override in input classes.
            return false;
        },

        /**
         * Selects the parent tab of this element. Usually called by focus() or overridden focus() methods.
         * @returns {CKEDITOR.dialog.uiElement} The current UI element.
         * @example
         * focus : function()
         * {
		 * 		this.selectParentTab();
		 * 		// do something else.
		 * }
         */
        selectParentTab: function () {
            var element = this.getInputElement(),
                cursor = element,
                tabId;
            while (( cursor = cursor.getParent() ) && cursor.$.className.search('cke_dialog_page_contents') == -1) { /*jsl:pass*/
            }

            // Some widgets don't have parent tabs (e.g. OK and Cancel buttons).
            if (!cursor)
                return this;

            tabId = cursor.getAttribute('name');
            // Avoid duplicate select.
            if (this._.dialog._.currentTabId != tabId)
                this._.dialog.selectPage(tabId);
            return this;
        },

        /**
         * Puts the focus to the UI object. Switches tabs if the UI object isn't in the active tab page.
         * @returns {CKEDITOR.dialog.uiElement} The current UI element.
         * @example
         * uiElement.focus();
         */
        focus: function () {
            this.selectParentTab().getInputElement().focus();
            return this;
        },

        /**
         * Registers the on* event handlers defined in the element definition.
         * The default behavior of this function is:
         * <ol>
         *  <li>
         *    If the on* event is defined in the class's eventProcesors list,
         *    then the registration is delegated to the corresponding function
         *    in the eventProcessors list.
         *  </li>
         *  <li>
         *    If the on* event is not defined in the eventProcessors list, then
         *    register the event handler under the corresponding DOM event of
         *    the UI element's input DOM element (as defined by the return value
         *    of {@link CKEDITOR.ui.dialog.uiElement#getInputElement}).
         *  </li>
         * </ol>
         * This function is only called at UI element instantiation, but can
         * be overridded in child classes if they require more flexibility.
         * @param {CKEDITOR.dialog.definition.uiElement} definition The UI element
         * definition.
         * @returns {CKEDITOR.dialog.uiElement} The current UI element.
         * @example
         */
        registerEvents: function (definition) {
            var regex = /^on([A-Z]\w+)/,
                match;

            var registerDomEvent = function (uiElement, dialog, eventName, func) {
                dialog.on('load', function () {
                    uiElement.getInputElement().on(eventName, func, uiElement);
                });
            };

            for (var i in definition) {
                if (!( match = i.match(regex) ))
                    continue;
                if (this.eventProcessors[i])
                    this.eventProcessors[i].call(this, this._.dialog, definition[i]);
                else
                    registerDomEvent(this, this._.dialog, match[1].toLowerCase(), definition[i]);
            }

            return this;
        },

        /**
         * The event processor list used by
         * {@link CKEDITOR.ui.dialog.uiElement#getInputElement} at UI element
         * instantiation. The default list defines three on* events:
         * <ol>
         *  <li>onLoad - Called when the element's parent dialog opens for the
         *  first time</li>
         *  <li>onShow - Called whenever the element's parent dialog opens.</li>
         *  <li>onHide - Called whenever the element's parent dialog closes.</li>
         * </ol>
         * @field
         * @type Object
         * @example
         * // This connects the 'click' event in CKEDITOR.ui.dialog.button to onClick
         * // handlers in the UI element's definitions.
         * CKEDITOR.ui.dialog.button.eventProcessors = CKEDITOR.tools.extend( {},
         * &nbsp;&nbsp;CKEDITOR.ui.dialog.uiElement.prototype.eventProcessors,
         * &nbsp;&nbsp;{ onClick : function( dialog, func ) { this.on( 'click', func ); } },
         * &nbsp;&nbsp;true );
         */
        eventProcessors: {
            onLoad: function (dialog, func) {
                dialog.on('load', func, this);
            },

            onShow: function (dialog, func) {
                dialog.on('show', func, this);
            },

            onHide: function (dialog, func) {
                dialog.on('hide', func, this);
            }
        },

        /**
         * The default handler for a UI element's access key down event, which
         * tries to put focus to the UI element.<br />
         * Can be overridded in child classes for more sophisticaed behavior.
         * @param {CKEDITOR.dialog} dialog The parent dialog object.
         * @param {String} key The key combination pressed. Since access keys
         * are defined to always include the CTRL key, its value should always
         * include a 'CTRL+' prefix.
         * @example
         */
        accessKeyDown: function (dialog, key) {
            this.focus();
        },

        /**
         * The default handler for a UI element's access key up event, which
         * does nothing.<br />
         * Can be overridded in child classes for more sophisticated behavior.
         * @param {CKEDITOR.dialog} dialog The parent dialog object.
         * @param {String} key The key combination pressed. Since access keys
         * are defined to always include the CTRL key, its value should always
         * include a 'CTRL+' prefix.
         * @example
         */
        accessKeyUp: function (dialog, key) {
        },

        /**
         * Disables a UI element.
         * @example
         */
        disable: function () {
            var element = this.getElement(),
                input = this.getInputElement();
            input.setAttribute('disabled', 'true');
            element.addClass('cke_disabled');
        },

        /**
         * Enables a UI element.
         * @example
         */
        enable: function () {
            var element = this.getElement(),
                input = this.getInputElement();
            input.removeAttribute('disabled');
            element.removeClass('cke_disabled');
        },

        /**
         * Determines whether an UI element is enabled or not.
         * @returns {Boolean} Whether the UI element is enabled.
         * @example
         */
        isEnabled: function () {
            return !this.getElement().hasClass('cke_disabled');
        },

        /**
         * Determines whether an UI element is visible or not.
         * @returns {Boolean} Whether the UI element is visible.
         * @example
         */
        isVisible: function () {
            return this.getInputElement().isVisible();
        },

        /**
         * Determines whether an UI element is focus-able or not.
         * Focus-able is defined as being both visible and enabled.
         * @returns {Boolean} Whether the UI element can be focused.
         * @example
         */
        isFocusable: function () {
            if (!this.isEnabled() || !this.isVisible())
                return false;
            return true;
        }
    };

    CKEDITOR.ui.dialog.hbox.prototype = CKEDITOR.tools.extend(new CKEDITOR.ui.dialog.uiElement,
        /**
         * @lends CKEDITOR.ui.dialog.hbox.prototype
         */
        {
            /**
             * Gets a child UI element inside this container.
             * @param {Array|Number} indices An array or a single number to indicate the child's
             * position in the container's descendant tree. Omit to get all the children in an array.
             * @returns {Array|CKEDITOR.ui.dialog.uiElement} Array of all UI elements in the container
             * if no argument given, or the specified UI element if indices is given.
             * @example
             * var checkbox = hbox.getChild( [0,1] );
             * checkbox.setValue( true );
             */
            getChild: function (indices) {
                // If no arguments, return a clone of the children array.
                if (arguments.length < 1)
                    return this._.children.concat();

                // If indices isn't array, make it one.
                if (!indices.splice)
                    indices = [indices];

                // Retrieve the child element according to tree position.
                if (indices.length < 2)
                    return this._.children[indices[0]];
                else
                    return ( this._.children[indices[0]] && this._.children[indices[0]].getChild ) ?
                        this._.children[indices[0]].getChild(indices.slice(1, indices.length)) :
                        null;
            }
        }, true);

    CKEDITOR.ui.dialog.vbox.prototype = new CKEDITOR.ui.dialog.hbox();


    (function () {
        var commonBuilder = {
            build: function (dialog, elementDefinition, output) {
                var children = elementDefinition.children,
                    child,
                    childHtmlList = [],
                    childObjList = [];
                for (var i = 0; ( i < children.length && ( child = children[i] ) ); i++) {
                    var childHtml = [];
                    childHtmlList.push(childHtml);
                    childObjList.push(CKEDITOR.dialog._.uiElementBuilders[child.type].build(dialog, child, childHtml));
                }
                return new CKEDITOR.ui.dialog[elementDefinition.type](dialog, childObjList, childHtmlList, output, elementDefinition);
            }
        };

        CKEDITOR.dialog.addUIElement('hbox', commonBuilder);
        CKEDITOR.dialog.addUIElement('vbox', commonBuilder);
    })();

    /**
     * Generic dialog command. It opens a specific dialog when executed.
     * @constructor
     * @augments CKEDITOR.commandDefinition
     * @param {string} dialogName The name of the dialog to open when executing
     *        this command.
     * @example
     * // Register the "link" command, which opens the "link" dialog.
     * editor.addCommand( 'link', <b>new CKEDITOR.dialogCommand( 'link' )</b> );
     */
    CKEDITOR.dialogCommand = function (dialogName) {
        this.dialogName = dialogName;
    };

    CKEDITOR.dialogCommand.prototype =
    {
        /** @ignore */
        exec: function (editor) {
            // Special treatment for Opera. (#8031)
            CKEDITOR.env.opera ?
                CKEDITOR.tools.setTimeout(function () {
                    editor.openDialog(this.dialogName);
                }, 0, this)
                : editor.openDialog(this.dialogName);
        },

        // Dialog commands just open a dialog ui, thus require no undo logic,
        // undo support should dedicate to specific dialog implementation.
        canUndo: false,

        editorFocus: CKEDITOR.env.ie || CKEDITOR.env.webkit
    };

    (function () {
        var notEmptyRegex = /^([a]|[^a])+$/,
            integerRegex = /^\d*$/,
            numberRegex = /^\d*(?:\.\d+)?$/,
            htmlLengthRegex = /^(((\d*(\.\d+))|(\d*))(px|\%)?)?$/,
            cssLengthRegex = /^(((\d*(\.\d+))|(\d*))(px|em|ex|in|cm|mm|pt|pc|\%)?)?$/i,
            inlineStyleRegex = /^(\s*[\w-]+\s*:\s*[^:;]+(?:;|$))*$/;

        CKEDITOR.VALIDATE_OR = 1;
        CKEDITOR.VALIDATE_AND = 2;

        CKEDITOR.dialog.validate =
        {
            functions: function () {
                var args = arguments;
                return function () {
                    /**
                     * It's important for validate functions to be able to accept the value
                     * as argument in addition to this.getValue(), so that it is possible to
                     * combine validate functions together to make more sophisticated
                     * validators.
                     */
                    var value = this && this.getValue ? this.getValue() : args[0];

                    var msg = undefined,
                        relation = CKEDITOR.VALIDATE_AND,
                        functions = [], i;

                    for (i = 0; i < args.length; i++) {
                        if (typeof( args[i] ) == 'function')
                            functions.push(args[i]);
                        else
                            break;
                    }

                    if (i < args.length && typeof( args[i] ) == 'string') {
                        msg = args[i];
                        i++;
                    }

                    if (i < args.length && typeof( args[i]) == 'number')
                        relation = args[i];

                    var passed = ( relation == CKEDITOR.VALIDATE_AND ? true : false );
                    for (i = 0; i < functions.length; i++) {
                        if (relation == CKEDITOR.VALIDATE_AND)
                            passed = passed && functions[i](value);
                        else
                            passed = passed || functions[i](value);
                    }

                    return !passed ? msg : true;
                };
            },

            regex: function (regex, msg) {
                /*
                 * Can be greatly shortened by deriving from functions validator if code size
                 * turns out to be more important than performance.
                 */
                return function () {
                    var value = this && this.getValue ? this.getValue() : arguments[0];
                    return !regex.test(value) ? msg : true;
                };
            },

            notEmpty: function (msg) {
                return this.regex(notEmptyRegex, msg);
            },

            integer: function (msg) {
                return this.regex(integerRegex, msg);
            },

            'number': function (msg) {
                return this.regex(numberRegex, msg);
            },

            'cssLength': function (msg) {
                return this.functions(function (val) {
                    return cssLengthRegex.test(CKEDITOR.tools.trim(val));
                }, msg);
            },

            'htmlLength': function (msg) {
                return this.functions(function (val) {
                    return htmlLengthRegex.test(CKEDITOR.tools.trim(val));
                }, msg);
            },

            'inlineStyle': function (msg) {
                return this.functions(function (val) {
                    return inlineStyleRegex.test(CKEDITOR.tools.trim(val));
                }, msg);
            },

            equals: function (value, msg) {
                return this.functions(function (val) {
                    return val == value;
                }, msg);
            },

            notEqual: function (value, msg) {
                return this.functions(function (val) {
                    return val != value;
                }, msg);
            }
        };

        CKEDITOR.on('instanceDestroyed', function (evt) {
            // Remove dialog cover on last instance destroy.
            if (CKEDITOR.tools.isEmpty(CKEDITOR.instances)) {
                var currentTopDialog;
                while (( currentTopDialog = CKEDITOR.dialog._.currentTop ))
                    currentTopDialog.hide();
                removeCovers();
            }

            var dialogs = evt.editor._.storedDialogs;
            for (var name in dialogs)
                dialogs[name].destroy();

        });

    })();

    // Extend the CKEDITOR.editor class with dialog specific functions.
    CKEDITOR.tools.extend(CKEDITOR.editor.prototype,
        /** @lends CKEDITOR.editor.prototype */
        {
            /**
             * Loads and opens a registered dialog.
             * @param {String} dialogName The registered name of the dialog.
             * @param {Function} callback The function to be invoked after dialog instance created.
             * @see CKEDITOR.dialog.add
             * @example
             * CKEDITOR.instances.editor1.openDialog( 'smiley' );
             * @returns {CKEDITOR.dialog} The dialog object corresponding to the dialog displayed. null if the dialog name is not registered.
             */
            openDialog: function (dialogName, callback) {
                if (this.mode == 'wysiwyg' && CKEDITOR.env.ie) {
                    var selection = this.getSelection();
                    selection && selection.lock();
                }

                var dialogDefinitions = CKEDITOR.dialog._.dialogDefinitions[dialogName],
                    dialogSkin = this.skin.dialog;

                if (CKEDITOR.dialog._.currentTop === null)
                    showCover(this);

                // If the dialogDefinition is already loaded, open it immediately.
                if (typeof dialogDefinitions == 'function' && dialogSkin._isLoaded) {
                    var storedDialogs = this._.storedDialogs ||
                        ( this._.storedDialogs = {} );

                    var dialog = storedDialogs[dialogName] ||
                        ( storedDialogs[dialogName] = new CKEDITOR.dialog(this, dialogName) );

                    callback && callback.call(dialog, dialog);
                    dialog.show();

                    return dialog;
                }
                else if (dialogDefinitions == 'failed') {
                    hideCover();
                    throw new Error('[CKEDITOR.dialog.openDialog] Dialog "' + dialogName + '" failed when loading definition.');
                }

                var me = this;

                function onDialogFileLoaded(success) {
                    var dialogDefinition = CKEDITOR.dialog._.dialogDefinitions[dialogName],
                        skin = me.skin.dialog;

                    // Check if both skin part and definition is loaded.
                    if (!skin._isLoaded || loadDefinition && typeof success == 'undefined')
                        return;

                    // In case of plugin error, mark it as loading failed.
                    if (typeof dialogDefinition != 'function')
                        CKEDITOR.dialog._.dialogDefinitions[dialogName] = 'failed';

                    me.openDialog(dialogName, callback);
                }

                if (typeof dialogDefinitions == 'string') {
                    var loadDefinition = 1;
                    CKEDITOR.scriptLoader.load(CKEDITOR.getUrl(dialogDefinitions), onDialogFileLoaded, null, 0, 1);
                }

                CKEDITOR.skins.load(this, 'dialog', onDialogFileLoaded);

                return null;
            }
        });
})();

CKEDITOR.plugins.add('dialog',
    {
        requires: ['dialogui']
    });

// Dialog related configurations.

/**
 * The color of the dialog background cover. It should be a valid CSS color
 * string.
 * @name CKEDITOR.config.dialog_backgroundCoverColor
 * @type String
 * @default 'white'
 * @example
 * config.dialog_backgroundCoverColor = 'rgb(255, 254, 253)';
 */

/**
 * The opacity of the dialog background cover. It should be a number within the
 * range [0.0, 1.0].
 * @name CKEDITOR.config.dialog_backgroundCoverOpacity
 * @type Number
 * @default 0.5
 * @example
 * config.dialog_backgroundCoverOpacity = 0.7;
 */

/**
 * If the dialog has more than one tab, put focus into the first tab as soon as dialog is opened.
 * @name CKEDITOR.config.dialog_startupFocusTab
 * @type Boolean
 * @default false
 * @example
 * config.dialog_startupFocusTab = true;
 */

/**
 * The distance of magnetic borders used in moving and resizing dialogs,
 * measured in pixels.
 * @name CKEDITOR.config.dialog_magnetDistance
 * @type Number
 * @default 20
 * @example
 * config.dialog_magnetDistance = 30;
 */

/**
 * The guideline to follow when generating the dialog buttons. There are 3 possible options:
 * <ul>
 *     <li>'OS' - the buttons will be displayed in the default order of the user's OS;</li>
 *     <li>'ltr' - for Left-To-Right order;</li>
 *     <li>'rtl' - for Right-To-Left order.</li>
 * </ul>
 * @name CKEDITOR.config.dialog_buttonsOrder
 * @type String
 * @default 'OS'
 * @since 3.5
 * @example
 * config.dialog_buttonsOrder = 'rtl';
 */

/**
 * The dialog contents to removed. It's a string composed by dialog name and tab name with a colon between them.
 * Separate each pair with semicolon (see example).
 * <b>Note: All names are case-sensitive.</b>
 * <b>Note: Be cautious when specifying dialog tabs that are mandatory, like "info", dialog functionality might be broken because of this!</b>
 * @name CKEDITOR.config.removeDialogTabs
 * @type String
 * @since 3.5
 * @default ''
 * @example
 * config.removeDialogTabs = 'flash:advanced;image:Link';
 */

/**
 * Fired when a dialog definition is about to be used to create a dialog into
 * an editor instance. This event makes it possible to customize the definition
 * before creating it.
 * <p>Note that this event is called only the first time a specific dialog is
 * opened. Successive openings will use the cached dialog, and this event will
 * not get fired.</p>
 * @name CKEDITOR#dialogDefinition
 * @event
 * @param {CKEDITOR.dialog.definition} data The dialog defination that
 *        is being loaded.
 * @param {CKEDITOR.editor} editor The editor instance that will use the
 *        dialog.
 */

/**
 * Fired when a tab is going to be selected in a dialog
 * @name CKEDITOR.dialog#selectPage
 * @event
 * @param {String} page The id of the page that it's gonna be selected.
 * @param {String} currentPage The id of the current page.
 */

/**
 * Fired when the user tries to dismiss a dialog
 * @name CKEDITOR.dialog#cancel
 * @event
 * @param {Boolean} hide Whether the event should proceed or not.
 */

/**
 * Fired when the user tries to confirm a dialog
 * @name CKEDITOR.dialog#ok
 * @event
 * @param {Boolean} hide Whether the event should proceed or not.
 */

/**
 * Fired when a dialog is shown
 * @name CKEDITOR.dialog#show
 * @event
 */

/**
 * Fired when a dialog is shown
 * @name CKEDITOR.editor#dialogShow
 * @event
 */

/**
 * Fired when a dialog is hidden
 * @name CKEDITOR.dialog#hide
 * @event
 */

/**
 * Fired when a dialog is hidden
 * @name CKEDITOR.editor#dialogHide
 * @event
 */

/**
 * Fired when a dialog is being resized. The event is fired on
 * both the 'CKEDITOR.dialog' object and the dialog instance
 * since 3.5.3, previously it's available only in the global object.
 * @name CKEDITOR.dialog#resize
 * @since 3.5
 * @event
 * @param {CKEDITOR.dialog} dialog The dialog being resized (if
 * it's fired on the dialog itself, this parameter isn't sent).
 * @param {String} skin The skin name.
 * @param {Number} width The new width.
 * @param {Number} height The new height.
 */
